hi,all...
here are my codes on how to a draw a circle using curses,but I found
it's not a good way and there are some bugs.
#include<vector>
#include<curses.h>
using std::vector;
struct Point
{
Point(int i_,int j_)
{
i = i_;
j = j_;
}
int i;
int j;
};
vector<Point> draw_circle(const Point& center,int radius)
{
vector<Point> vp;
for(int i = 0; i<LINES;i++)
for(int j = 0;j<COLS;j++)
{
if((i - center.i)*(i - center.i) + (j -
center.j)*(j - center.j) ==
radius*radius )
{
vp.push_back(Point(i,j));
move(i,j);
addstr("a");
refresh();
usleep(100000);
}
}
return vp;
}
int main()
{
Point center (22,22);
int radius = 2; //int radius = 1,.....take care of here..@@
initscr();
clear();
draw_circle(center,radius);
sleep(33);
endwin();
return 0;
}
Q1:
at main() function,
I found it is so strange that if I declare int radius = 2,or int radius
= 1,or some
others ,the picture I draw is only have four point,but if the radius is
bigger,there may be more,but the quantity is not respected.
Q2:are there a better way to draw a circle??
Thanks in advance.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Algorithm Geeks" group.
To post to this group, send email to algogeeks@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at http://groups.google.com/group/algogeeks
-~----------~----~----~----~------~----~------~--~---
